Difference between first party and third party cookies

Hi everyone,

I am reading that the end of third party cookies is coming. I'm new to affiliate marketing so don't really understand the impact of this. If I sign up to affiliate programms to be given affiliate links that I will post on my own website, will I still be able to receive commissions in the future? I am not sure if this uses first party or third party cookies. Thanks for any info in advance.